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  • Articles  (115)
  • Mice  (115)
  • 1975-1979  (115)
  • Medicine  (115)
  • Computer Science  (112)
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  • Articles  (115)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 27 (1979), S. 19-26 
    ISSN: 1432-0827
    Keywords: Bone diseases ; Familial hypophosphatemia ; Magnesium ; Mice ; Phosphorus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary A new genetic mutant in mice,Hyp, has been proposed as a model for the human disease X-linked hypophosphatemia (the most common form of vitamin D-resistant rickets). The gene is X-linked, dominant, and produces reduced renal tubular reabsorption of phosphate, hypophosphatemia, and dwarfism. Our goal was to evaluate the skeletal changes histologically and to measure chemically the prominant blood and bone minerals to judge the suitability of this mutant as a model for the human disease. Thirteen-week-old hemizygousHyp male mice were compared with their normal littermate controls. TheHyp mice were hypocalcemic, hypophosphatemic, hypermagnesemic, and had elevated plasma alkaline phosphatase. The femur ash weighed less than half the normal ash weight but had a normal Ca:P ratio. The ash composition was high in %Na and K but low in %Mg. The mandibular incisor ash was also low in %Mg. Histologically the femur showed wide osteoid borders and wide epiphyseal plate. Microradiography revealed reduced bone density and enlarged osteocyte lacunae. Skeletal muscle samples, although smaller in theHyp mice, showed no striking alternations in inorganic or total phosphate content, dry weight (as % wet weight), or extracellular fluid space. TheHyp gene in mice seems to produce a condition similar to that of X-linked hypophosphatemia in humans.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 28 (1979), S. 259-262 
    ISSN: 1432-0827
    Keywords: C-type virus particles ; Bone tissue ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary The proximal tibial metaphysis of apparently healthy strain 101 mice, 3–4 weeks old, and (C3H×101)F1 hybrids, 3–48 weeks old, was studied by electron microscopy. Budding, immature, and mature C-type virus particles were found within trabecular bone tissue of 3 of 8 strain 101 and 4 of 12 (C3H×101)F1 mice. The particles were most common in lacunae of aging osteocytes and were only occasionally associated with osteoblasts. Although the morphology of budding and immature particles appeared to be identical with that of typical C-type viruses, most of the mature forms of particles showed atypical structure and size. The electron-dense core was very large and not clearly defined, measuring approximately 70–130 nm in diameter. This diffuse core sometimes completely filled the space within the envelope of the particles. The diameters of the pleomorphic mature C-type particles ranged from approximately 90 to 150 nm. The possible association between the production of pleomorphic C-type virus particles by bone cells and spontaneous osteomagenesis in 101 and (C3H × 101)F1 mice is discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0878
    Keywords: Glucocorticoids ; Bone growth retardation ; Chondrocytes ; Rehabilitation ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Immature A/J mice were treated for up to 7 weeks with intermittent doses of triamcinolone hexacetonide and were thereafter allowed to recover for 7 weeks. Qualitative and quantitative morphological measurements were performed on the epiphyseal cartilage plate and diaphyseal bone of the humerus. By the third injection significant structural changes were noted in the cartilaginous tissue followed by a complete cessation of bone growth. The hormonal inhibitory effect on long bone growth lasted throughout the experimental period. However, at the end of the recovery period the length of the humerus was 96% of the normal. In contrast, the humeral width at midshaft and the width of its medullary cavity revealed slower recovery, achieving only 80% of the control values. Following rehabilitation, the growth of experimental epiphyseal plates exceeded that of nontreated animals as their width and the number of hypertrophic chondrocytes were 131% and 125% of their controls respectively. Thus, in A/J mice (a highly susceptible inbred strain of mice) intermittent (every four days) administration of a long-acting corticosteroid hormone arrested endochondral and periosteal bone formation; the former, however, underwent full recovery following the termination of the hormonal treatment.
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-01-06
    Description: Incubation of minced mouse-forebrain tissues in lithium Krebs solution reduces the acetylcholine content of the vesicular fraction 70 percent without altering that of the cytoplasmic fraction. Depleted vesicular-bound acetylcholine can be restored with newly synthesized acetylcholine (formed from extracellular choline) independently of the cytoplasmic pool. Depletion of vesicular-bound acetylcholine does not facilitate the movement of preformed extracellular acetylcholine into vesicles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carrol, P T -- Nelson, S H -- New York, N.Y. -- Science. 1978 Jan 6;199(4324):85-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Toxicology, University of Rhode Island, Kingston, RI 02881, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17569492" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/*metabolism ; Animals ; Cholinesterase Inhibitors/pharmacology ; Cytoplasm/*metabolism ; Cytoplasmic Vesicles/drug effects/*metabolism ; Lithium Compounds/pharmacology ; Male ; Mice ; Paraoxon/pharmacology ; Prosencephalon/drug effects/*metabolism/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-03-10
    Description: Several strains of attenuated rabies virus lacking the capacity to kill adult mice acquired a high lethal potential for mice after one to five serial passages in murine or human neuroblastoma cells. The virulence acquired after passage in neuroblastoma cells is a stable genetic trait retained during subsequent passage of viruses in nonneuroblastoma cell systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, H F -- New York, N.Y. -- Science. 1978 Mar 10;199(4333):1072-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/628831" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cells, Cultured ; Mice ; Neuroblastoma/*microbiology ; Neurons/microbiology ; Rabies Vaccines/toxicity ; Rabies virus/genetics/*pathogenicity ; Vaccines, Attenuated/toxicity ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-04-21
    Description: Female mice of the C3H strain normally do not reject skin grafts from males of the same strain; however, 40 percent of splenectomized C3H female mice completely rejected C3H male skin grafts applied 2 weeks later. All splenectomized females showed at least transitory signs of graft rejection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coons, T A -- Goldberg, E H -- New York, N.Y. -- Science. 1978 Apr 21;200(4339):320-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/345443" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; *Graft Rejection ; *Histocompatibility Antigens ; Immunosuppression ; Male ; Mice ; Mice, Inbred C3H/immunology ; Skin Transplantation ; Spleen/*immunology ; Transplantation, Homologous ; Y Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 1978-03-24
    Description: Substance P produces analgesia when administered to mice in very small doses by the intraventricular route (1.25 to 5 nanograms per mouse). The analgesic effect can be blocked by naloxone. At higher doses (greater than 50 nanograms per mouse), this activity is lost. At these higher doses, however, substance P produced hyperalgesia when combined with naloxone and analgesia when combined with baclofen [beta-(4-chlorophenyl)-gamma-aminobutyric acid]. Substance P may have dual actions in brain, releasing endorphins at very low doses and directly exciting neuronal activity in nociceptive pathways at higher doses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frederickson, R C -- Burgis, V -- Harrell, C E -- Edwards, J D -- New York, N.Y. -- Science. 1978 Mar 24;199(4335):1359-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/204012" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Baclofen/pharmacology ; Dose-Response Relationship, Drug ; Endorphins/*pharmacology ; Enkephalins/antagonists & inhibitors/*pharmacology ; Mice ; Naloxone/pharmacology ; Nociceptors/*drug effects ; Receptors, Opioid/*drug effects ; Structure-Activity Relationship ; Substance P/analogs & derivatives/antagonists & inhibitors/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-12-22
    Description: Murine macrophages are endowed with nicotinamide adenine dinucleotide splitting activity that is markedly higher than that of other cells, tissues, or organs of the mouse. This enzyme therefore can be used as a biochemical marker for distinguishing macrophages from other cells of the lymphoreticular system and from polymorphonuclear leukocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Artman, M -- Seeley, R J -- New York, N.Y. -- Science. 1978 Dec 22;202(4374):1293-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/214853" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ascitic Fluid/enzymology ; B-Lymphocytes/enzymology ; Blood Platelets/enzymology ; Bone Marrow/enzymology ; Humans ; Lymph Nodes/enzymology ; Macrophages/*enzymology ; Mice ; Monocytes/enzymology ; NAD+ Nucleosidase/*metabolism ; Neutrophils/enzymology ; Spleen/enzymology ; T-Lymphocytes/enzymology ; Tissue Distribution
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-09-22
    Description: Impure and pure samples of saccharin (2 milligrams per milliliter) did not produce oncogenic transformation of C3H/10T1/2, clone 8, mouse embryo fibroblasts. However, after treatment of the cells with a nontransforming initiating dose (0.1 microgram per milliliter) of 3-methylcholanthrene, continuous treatment with either sample of saccharin (100 micrograms per milliliter) led to significant transformation. It is concluded that in this system saccharin is a cocarginogen, probably functioning as a promoting agent that is 1000-fold less active than the tumor promoter 12-O-tetradecanoyl-phorbol-13-acetate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mondal, S -- Brankow, D W -- Heidelberger, C -- New York, N.Y. -- Science. 1978 Sep 22;201(4361):1141-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/684434" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carcinogens ; Cell Line ; Cell Transformation, Neoplastic/*chemically induced ; Cocarcinogenesis ; Embryo, Mammalian ; Methylcholanthrene ; Mice ; Mice, Inbred C3H ; Saccharin/*pharmacology ; Tetradecanoylphorbol Acetate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1978-06-23
    Description: Delta 6-Tetrahydrocannabinol-C-4-glucuronide was found in the livers of mice that had been administered delta 6-tetrahydrocannabinol. Thus, C-glucuronidation of a compound that contains a free hydroxyl group has been demonstrated in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, S -- Yagen, B -- Mechoulam, R -- New York, N.Y. -- Science. 1978 Jun 23;200(4348):1390-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dronabinol/*analogs & derivatives/metabolism ; Glucuronates/metabolism ; Liver/*metabolism ; Mice
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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